Definitions

Multicast check
Macro for testing multicast messages
#define	IS_MULTICAST(a)   ((a & 0x00f00000) == 0x00e00000 )

Detailed Description

Macro Definition Documentation

#define IS_MULTICAST

(

a

)

((a & 0x00f00000) == 0x00e00000 )

use with socket_struct ->mc_group_addr

if (IS_MULTICAST(so-> mc_group_addr))
{
    printf (" New multicast data received\r\n");
}
else
{
    printf (" New data received\r\n");
}

Examples:

Multicast.c.